Printing-press gripper.



N. SADOVSKY.

PRINTING PRESS GRIPPER.

APPLICATION men NOV. :0. 1916.

Patented Oct. 30, 1917.

4 SHEETS-SHEET I @inventor Attorneys Witnesses N. SADOVSKY.

PRINTING PRESS GRIPPER. APPLICATION min NOV- 10. ms.

Patented Oct. 30.1917.

4 $HETS-8HEET 2 Attorneys N, SADOVSKY.

PRINTING PRESS GRIPPER.

APPLICATION FILED NOV.10.19i6.

'lfiwsa V Patented 0ct.30,1917.

4 SHEETS-SHEET 3.

Wi ness fizfizy gwenor by i n I,

Attorneys 'YN. SADOVSKY.

PRiNTING PRESS GRIPPER APPLICATION FILED NOV. :0. 1916.

1,244,548, Patented m, 30, 1917.

4 SHEETSSHEET 4.

Witnesses Attorneys warr ng sanovsn j, or SAN ANTONIO, TEXAS.

weessve t ea f tter at n ?a d 1 t- Application filedNovembei .10, 1916. Serial No. 130,606.,

To all whom itmag concern i Be it knownthat I, 'NATI-IAN .SADOXSKY,

a citizen of wthe United States, residing at San Antonio, in the county, of vBexar and State of Texas, have invented new "and useful Printing-Press Grippers, of, which the following is a specification.

The present invention appertai s toprinting presses,and aims to provide novel and improved gripping devices for a printing press, the improvements being adapted. es-. pecially for'use upon a printingi'press of the style disclosed in my *Patent No.

1,088,732 granted: March. 3, .1914- 'One of the objects of, the invention is to provide a novel and improved paper gripping device carried by? the type bed-for carrying the paper to. the rotaryplaten, the structure being comparatively simple and compact, ,as well as being thoroughly practical and eflicient in operation.

Another object of the invention is the provision of a novel and'improved gripping device carried by the rotaryplaten for take ing the paper from the type and delivering it to the delivery belts, this construction also being simple and compact, aswell as practical and efficacious. 1

The invention alsoincludes novel means for operating the grippers of the two sets. With the foregoing and other objects in view which will appear as the" description proceeds,-the invention resides in the combination and arrangement of'parts and'in the details of'constru'ction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed 62111138111363 with in the scope of what is claimed without de parting from the spirit of the invention;

The'invention is illustrated in the accompanying drawings, wherein V. Figure 1 is a plan view of the gripper device movable with and carried by the type bed. I -l I Fig. 2 is a sectional view illustrating the gripping jaws of the type bed gripping device'in position to recelve the paper ready to grip the same, parts, being removed. Fig. 3'is an elevation, parts being re- 1 moved and: parts being shown in-section,

to F ig. 3 with additional parts removed, show ng the parts advancedawith the type bed gripping'device open and the. platen gripping device closed to carry the paper with the platen upwardly awayfrom thebed. 7 I

Fig. 5, is a fragmental elevation illustrating the platen gripping device in position to deliver-the paper from the platen to the delivery belts.

Fig. 6 is an enlarged detail view of the gears for operating the type bedjgripping;

The printing press with which thegripQ ping devices are used embodies a typebed 1 movable in a circular or circuituous path, as disclosed in said patent, and carrying the type 2 upon. whichthe paper '3 rests to, move under the rotary'platen't.

The gripping! device carried by the type :bed 1 embodies forwardly "projecting brackets or bearings. 5 carried by "the for-i ward end of the bed 1 and in which a pair of spaced transverse rock shafts 6 and 'Z-are journaled in advance of. the bed andrbelow the surface of the type. jecting gripper jaws 8 are rotatable loosely upon the rear rock shaft 6, and have rubber bands 9 upon their free ends to prevent the slipping of the paper, said jaws 8 being movable downwardly from the surface of the type. The jaws 8 are provided with forwardly projecting toes 10 and rearwardly projectingarms 11 are secured to the rock Rearwardly pro-,

shaft? andprojectretrrwardly with their free ends" bearing uponthe toes 10. Leaf springs 12 are secured'to the arms 11" and their free ends extend under the toes-10 to hold the toes and arms 11 in contact. It is evident that when the arms 11 arede: pressed, this depresses the .toes 10 toraise the gripper jaws 8 to operative position. There may beany suitable-number of gripper jaws 8 which are SPELCBd wfi'HIlSVQI'SBlY of the type bedl, and the jaws 8' are bifurcated to receive upper gripper jaws l3 "se-, cured rigidly to the shaft 6. The upper gripperjaws 13 are swingable'forwardly and downwardly to openiposition, and, are

a in rear of the same and is supported for retation below the bed 1 in any suitable manner, the gears 15' and 16 being carried by the bed. A depending arm 17 is secured to the gear 15 and has an outstanding roller 18 movable over a series of tracks 19, and a depending arm 20 is secured to the gear 16 at the opposite side and has an outstanding roller 21 movable over a longitudinal series of tracks 22. ing over the respective tracks, serve to oscillate the shaft 6, as will hereinafter more fully appear, for operating the jaws 8 and 13. a

A rearwardly projecting arm 23 is secured to the shaft 7 and carries an adjusting screw 24 for an expansion spring 25 disposed between said screw and a shelf 26 carried by the bed 1, whereby the spring 25 in expanding will raise the arm 23 to rock the shaft 7 so as to raise the arms 11.

In order to rock the shaft 7 to depress the arms 11 at the proper time, a depending arm 27 is secured to the shaft 7, and a collar 28 is secured upon the shaft'6 in rear of the arm 27 and has a radial lug 29. A stem 36 is slidable loosely through the arm 27 and I a coiled wire expansion spring 31 upon said I that it abuts against the rear end of the a stem is confined betweenthe arm 27 and a stop 32 carried by the stem 30 in rear of the arm 27, whereby the spring 31 tends to slide the stem 30 rearwardly. A spring 33 isconnected to the stem 30 near its rear end to move the rear end of said stem up againstthe collar 28. Then the shaft 6 is turned to swing the jaws 13 rearwardly and downwardly to gripping position, the collar 23 is turned to bring the lug 29 lowermost, so

stem 30, thereby forcing said stem forwardly to compress the spring 31 which will press the arm 27 yieldably forward, wherebyto rock the shaft 7 for depressing the arms 11, which will result in thetoes 10 being depressed for raising the jaws 8 to gripping position to co6perate with the jaws 13, as seen in Fig. 3. hen the shaft 6 is rotated to move thejaws 13 to open position, the lug 29 being moved rearwardly and upwardly will release the stem 30, so that the spring 31 will expand and thus permit the arm27 to move rearwardly under the tension of the sprin 25, thereby raising the arms 11 and the springs 12 in pressing the toes 1O upwardly will depress the jaws 8.

The roll rs 18 and 21 in mov naeaeae diameter than the shaft 3 1 through which said shaft extends, and a shank 7 12 is secured to the block and projects radially outward, being provided at its outer end with a rearwardly curved gripper jaw d3 to press against the forward end of the arcuate platen at. Vl ithin each opening e1, the shaft 3% carries a radially projecting key 4%, which projects toward the center of the platen, and which contacts friotionally with the circular wall of the block 40 formed by the opening %1, as clearly seen by reference to Fig. 1. The block 10 has an extension +15 projecting radially outward opposite the key as and provided with a longitudinal bore 46 in whicha coiled wire expansion spring 47 is disposed, the inner end of said spring pressing against the shaft 34 and its outer end bearing against a screw plug 18 threaded within the bore 46. The spring 47 tends to press the block 40 outwardly, thereby pressing it frictionally against the key A coiled wire retractile spring -19 connects each shank 42 and the platen 1 whereby to pull the shank d2 rearwardly against the forward edge of tlie'platen. v

The type bed 1 is movable under the platen, the paper being carried from the bed by the platen to delivery belts 5H), trained over pulleys 51 disposed at the top'of the platen and superimposed to receive the paper therebetween from the platen which rotates in the direction of the arrows, counter clockwise, as illustrated in the drawings. a '1 he operation of the mechanism is as follows r a It is to be understood that the type bed and platen are operated in'proper timed relation by suitable gearing provided for that purpose, as in the structure shown'in the above mentioned patent. lVhen the type bed 1 is moved under the inking rollers, the gripping device of the bed in the position illustrated in Fig. 2, the roller21 moving upon a track 22 with the arm 20v in'trailing position, the gear 16 having been rotated clockwise, as seen in Fig.2, when the roller 21 movesonto the track 22., so as to rotate the gear 15 counter clockwise andthe pinion 14: counter clockwise. The aws 13 were therefore swung forwardly and downwardly when the roller 21 moved onto the track 22, and the shaft 6 being rotated, removed the iers, without touching them. When the bed reaches the position illustrated in Fig. 2, to receive the sheet of paper 3 from the paper feeder, ,the-rollerrQlisjready to move 011, of thetrack 22, and the roller 19 is ready tov move QI1tQ 1tSt1iZLOk 1Q, Thus, as the paper 3 is fed over the jaws 8, the roller,

20 leaves the trackand the roller 18 -s onped: by th travk 9 e 'a the continued movement. of the bed 1 and, the gear 15 will result inthe 17f beingswung rearwardly tomove onto traelrl Thus, the arm 17 rotates the gear-:15 clockwise, asseen in 2, and the gear 16 is rotated counterclockwise to'move the arm 20, forwardlyyso that a ms l Mid J O 3 sume the position illustrated in Fig, 3, with the arm 11 in trailing positionv on the track 19 Due tothe swinging movement of the arm 1? and gear 15, the pinion 1A is roe tated counter clookwise, as seen in Fig. 2, to swing the, jaws 13' rearwardly and downwardly over the paper, and at the same time, the lug 29: in contact with, the stem 30, will depress the arms 11, therebyv to iaise thejaws 8, sothat the paper is gripped between the jaws 8 and lhthereby carrying the paper with thetype 011 Which theipaper rests. The bed and its; grippingrdevicemove in this positiontotand under the platen, as

illustrated in Fig. 3, and when the bed reaches this po sition, the roller 18 is ready to move otf ofr its track 19, andthe roller 21 is in position to moveonto the next track 22,;; whereby tofopen the gripper, jaws of the typebed, In this positionof the parts,

the gripper of theplaten are 1mj mediately in advance of the forward edge of the paper. The shanks are moved for wardly against, the tension of the springs 419 for the reason, which: will appear hereinafter, the keys ll hav ng been moved rear wardly bythe outwardmovement of the roller 36 and arm Now, as the roller 18 leaves the traclclgi theroller ZI-engages the track 22 andtis retarded momentarilm'there by swingingthe arm 20 rearwardly and rotatinat g fir leelwlsaa e i F e- 3, the arm 17 being swung forwardly to the position illustratedinFig, 4. 4 The geaiylfi and pinion 141, are, therefore rotated in the proper direction so that the jaws 13 are swung. forwardlyand downwardly, which resnltsnin the jaws ,Sbeing depressed. At the time the jaws S and 13 open up, the

roller 36 moves from the portion38 f the cam 87 to the portion39,thereby movmg the V roller 36; and er-11173 5 inwardly relative to the platen a, and this will rock the shaft 34 clockwise sseen in Figs, 3 and e, rela tive to the platen. The keys as fare the georee vetl io wardlin and, in tfrictiena lyr agi e b fik's 0'; w l S i e ai lo tlgslt i s ng. h'sh nks 2 rearwa d yi' thus moving the ja'ws'43 under thepagper, nd t e key 4% ing ed i nvi l foroethe blocks 40'inwardly thereby moving the jaws 1L3 inwardly, against the platen to gr n he p per a the jaws 8 and .3 Sena-- lhe parts are now inf-the position l us atvd in E g- ,;theipape fbe ng a lried trom the type by theplatfen. The paper s. d li r d f m h platen t he t thereof, since when the forward edge of the paper reaches the pulleys hl, the roller 36 moves from the portion 39 'tothe portion 38 of the earn 37, thereby swinging the arm 3;; outwardly relative to th'e platen, and the keys 4% in friotionally engagingthe blocks 1Q, will swing said blocks whereby to swing the shanks forwardly away from the platen. The jaws lgaretherefore moved forwardly away from the paper as the paper moves between the belts 50, and thelreys 4% being moved rearwardly, are moved outwardly, whereby the springs 4;? press the blocks 4:0 outw rdly to move the jawsflila'way from the platen. Thisremoves the jaws 43 from the paper as it moves betweenthe belts 5,0, and t the jaw 3 r m i i h s n s b their downward movement to grip the next sheet of; paper asabove described.

With the present mechanism, a series'of type beds can w ven; succession under a series oi inking rollers (not shown) and platens 4, aslwill be obvious especially by referring to the aforementioned"patent; It will also be apparent that a si itable number of tracks 19 and 20 are employed, according tothe number ofplatens, etc.

Having thus "described the" what is claimed as new is:

1. In a printing press, thecombination with a movable member, of a paper gripping devicecarried bysaid member embodying gripper jaws," a pair of oppositely swinging arm carried by said member for operating said jaws, and tracks upon which said arms are adapted to alternately ridefor opening and' elosing the jaws. j I

printing press, thTcombination with a movable member, of paper grip ping device carried byi'said member includinggripper jaws, an oscillatory SllflfiffOl' operating said; aws, a pair of intermeshing gears connected to said shaft for oscil lating in diiferent directions, arms carried by said gears to'operatein" opposite direc tions, andjtracks upon which the arms are adapted toricle alternatelyffor oscillating said gearsand shaft. e

3. In a printing press, the combination with a movable member, of a gripping device carried by said member I including an oscillatoryshaft, gripper jaws operated by said a carried by the shaft, a

lil

jaw through its are when the first men tioned jaw completes and starts its movements toward and away from the second mentioned jaw, respectively.

5. A gripping device for printing presses embodying an; oscillatory shaft, a gripper jaw secured upon said shaft, a second gripperjaw mounted loosely upon said shaft to cooperate with the aforesaid jaw, and means operated by the oscillation of said shaft for operating the second mentioned jaw whereby the two jaws swing toward and away from one another into and out of gripping position.

6. A gripping device for printing presses embodying an oscillatory shaft, a gripper jaw secured thereon, a second oscillatory shaft, a second oscillatory gripper jaw mounted loosely upon the first mentioned shaft and operatively connected with the second -mentioned shaft, and means for oscillating the second mentioned shaft after the first mentioned shaft has been turned to move the first mentioned jaw to gripping position whereby to swing the second mentioned jaw toward the first mentioned jaw to gripping position.

7. A gripping device for printing presses embodying an oscillatory shaft, a. gripper jaw secured thereon, a second gripper jaw mounted loosely upon said shaft, a second oscillatory shaft having an arm, the second mentioned jaw having a portion engaged by said arm, and means operatively connecting said shafts whereby when the first mentioned shaft is turned to move the first mentioned jaw to gripping position, the second mentioned shaft is operated to swing said arm and thereby swing thesecond mentioned jaw to gripping position.

8. A gripping device for printing presses embodying an oscillatory shaft, a gripper jaw secured thereon, a second gripper jaw mounted loosely upon said shaft and cooperable with the aforesaid jaw, a second oscillatory shaft, an arm carried by the sec ond mentioned shaft, the second mentioned jaw having a toe upon which said arm bears,

"spring means for holding said arm and toe in contact, and an'operative connection between the shafts whereby the second menmasses tioned shaft is oscillated after the first mentioned shaft is turned a certain amount.

9. A gripping device for printing presses mentioned jaw to operate it, and means operatively connecting the shafts for yield. ably oscillating the second mentioned shaft after the first mentioned shaft has been turned a certain amount.

10. A gripping devlce for prlntlng presses embodying an oscillatory shaft, a gripperjaw secured thereto, a second gripper jaw mounted loosely upon said shaft, a second oscillatory shaft operatively connected with;

the second mentioned jaw to oscillate it, an

arm carried by the second mentioned shaft,

a stem slidable loosely'through said arm, spring meansfor moving said arm with said stem, spring means for swinging said stem toward the first mentioned shaft, and a portion carried by the first mentioned shaft to abut against and move said'stem when the first mentioned shaft is turned a certain amount.

11. A gripping device for arinting presses embodyingan oscillatory sha agripper jaw securedthereto, a second gripper jaw mounted loosely upon said shaft, a second oscillatory shaft, an arm carried by the second mentioned shaft, a toe carried by the second mentioned jaw upon whichsaid arm bears, spring means for holding said arm and toe in contact, a collar carried by the first mentioned shaft and having a lug, a second arm'carried by the second mentioned shaft, a stem slidable loosely' through the second mentioned arm, spring means for moving the second mentioned arm with the stem, and spring means for holding the stem against said collar for the abutment of said lug thereagainst when the first mentioned shaft is turned a certainamount.

12. A gripping device for printing presses embodying a gripper jaw swingable through a relatively large arc, a second gripper aw cooperable therewith and swingable through a small are, means for oscillating the first mentioned jaw, and means for yieldably moving the second mentionedjaw toward the first mentioned jaw when the first men-' having an opening through which said shaft extends, a gripper jaw carried by said member, spring means for moving said member outwardly, and means carried by said shaft and engaging said. member to oscillate it and said jaw. r

14. In a printing press, the combination with a rotary platen, of a rock shaft carried by said platen, a block having an opening through which said shaft extends, an outwardly extending shank carried by the block and having a rearwardly curved gripper jaw at its outer end cooper-able with the platen, spring means tending to move said jaw rearwardly, spring means carried by said block for moving it outwardly relative to said shaft, a key carried by said shaft- In testimony that I claim the foregoing as my own, I have hereto affixed my signature in the presence of two witnesses.

NATHAN SADOVSKY. W'itnesses:

A. D. DAvIs, B. P. BOEZINGER.

Copies of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents,

' Washington, D. C. 

